On initial contact, the pilot should give _______ to the controllers.
A.aircraft full call sign
B.abbreviated aircraft call sign
C.type of message
D.all of the above
正确答案是A
On initial contact, the pilot should give _______ to the controllers.
A.aircraft full call sign
B.abbreviated aircraft call sign
C.type of message
D.all of the above
正确答案是A